Tread portion of an automobile tire



FIG. 1 is a perspective view of a tread portion of an automobile tire;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a plane view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a fragmentary enlarged view showing the details thereof; and,

FIG. 7 is an end view taken along line 7-7 in FIG. 6 thereof.

Broken lines in the drawings are intended to show environmentalstructure only, and form no part of the claimed design.

CLAIM The ornamental design for a tread portion of an automobile tire,as shown and described.